Mobile devices (I-Phone 6+, I-Pad Mini 2, and other Apple)

Hello team,
I am kindly asking for help. My creolio wp theme is not displaying pictures from my “portfolio” on apple mobile devices. If I go to the website that tests mobile devices, it works, however, when you physically hold an Apple mobile device in your hand, it’s quite the opposite; no pictures show up like they are supposed to when viewed by a laptop or desktop. Please help. I’ll even pay.